from __future__ import annotations

from typing import Any

import pytest

from server.services import email_templates


def test_list_templates_returns_metadata():
    templates = email_templates.list_templates()
    assert isinstance(templates, list)
    assert templates[0]["id"] == "newsletter_confirmation"
    assert "name" in templates[0]


def test_load_template_uses_default_when_not_stored(monkeypatch):
    monkeypatch.setattr(email_templates, "get_app_settings", lambda: {})
    template = email_templates.load_template("newsletter_confirmation")
    assert template["content"] == email_templates.EMAIL_TEMPLATE_DEFINITIONS[
        "newsletter_confirmation"
    ].default_content


def test_persist_template_updates_storage(monkeypatch):
    captured: dict[str, Any] = {}

    def fake_update(key: str, value: str) -> None:
        captured["key"] = key
        captured["value"] = value

    # Return content via load call after persist
    monkeypatch.setattr(email_templates, "update_app_setting", fake_update)
    monkeypatch.setattr(
        email_templates,
        "get_app_settings",
        lambda: {"newsletter_confirmation_template": "stored"},
    )

    updated = email_templates.persist_template(
        "newsletter_confirmation", " stored ")
    assert captured["key"] == "newsletter_confirmation_template"
    assert captured["value"] == "stored"
    assert updated["content"] == "stored"